At this point I’m suspecting the system has a USB power issue. These are getting hard to find but I think it’s what you need to test things out: [https://www.ebay.com/i/271999629267]. With it you should be able to compare the current draw on a second working system (ideally another MacBook Air of the same series) and yours to see if the voltage and/or current draw is the issue. You might want to also try a second iPhone (again the same series would be best comparison).
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At this point I’m suspecting the system has a USB power issue. These are getting hard to find but I think it’s what you need to test things out: [https://www.ebay.com/i/271999629267|USB Charger Doctor - Current & Voltage Charging Detector as well as Battery Voltmeter & Ammeter]. With it you should be able to compare the current draw on a second working system (ideally another MacBook Air of the same series) and yours to see if the voltage and/or current draw is the issue. You might want to also try a second iPhone (again the same series would be best comparison).
At this point I’m suspecting the system has a USB power issue. These are getting hard to find but I think it’s what you need to test things out: [https://www.ebay.com/i/271999629267]
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At this point I’m suspecting the system has a USB power issue. These are getting hard to find but I think it’s what you need to test things out: [https://www.ebay.com/i/271999629267]. With it you should be able to compare the current draw on a second working system (ideally another MacBook Air of the same series) and yours to see if the voltage and/or current draw is the issue. You might want to also try a second iPhone (again the same series would be best comparison).
At this point I’m suspecting the system has a USB power issue. These are getting hard to find but I think it’s what you need to test things out: [https://www.ebay.com/i/271999629267]